Suppression of Macroscopic Defects through the Control of Friction between Workpiece and Dies in a Forged Magnesium Alloy Part with Ribs
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- Takara Akira
- Corporate Manufacturing Innovation Division, Matsushita Electric Industrial Co., Ltd.
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- Chian Li-Fu
- Department of Materials Science, Osaka Prefecture University
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- Chung Sung Wook
- Department of Materials Science, Osaka Prefecture University
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- Somekawa Hidetoshi
- Department of Materials Science, Osaka Prefecture University
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- Watanabe Hiroyuki
- Osaka Municipal Technical Research Institute
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- Takigawa Yorinobu
- Department of Materials Science, Osaka Prefecture University
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- Higashi Kenji
- Department of Materials Science, Osaka Prefecture University
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抄録
Superplastic magnesium alloy sheets were closed-die forged into an experimental part with ribs, which are asymmetrical elements to the plane of the forging. A macroscopic surface defect, which was formed by extrusion-type flow, was observed opposite to the rib during forging under improper lubrication conditions. However, the formation of the defect could be successfully suppressed by changing the frictional conditions of the workpiece/dies interface. Analysis of the rib forging using a finite controlled volume method simulation suggested that the suppression of the extrusion-type defect is associated with a change in velocity field distribution of the deforming material.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 49 (5), 898-902, 2008
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679226072576
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- NII論文ID
- 10021146210
- 130004454003
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 9480101
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可